Jupyter Notebook 常用魔法命令

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%lsmagic

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Available line magics:
%alias  %alias_magic  %autocall  %automagic  %autosave  %bookmark  %cat  %cd  %clear 
 %colors  %config  %connect_info  %cp  %debug  %dhist  %dirs  %doctest_mode  %ed  %edit 
 %env  %gui  %hist  %history  %killbgscripts  %ldir  %less  %lf  %lk  %ll  %load  %load_ext  
%loadpy  %logoff  %logon  %logstart  %logstate  %logstop  %ls  %lsmagic  %lx  %macro  
%magic  %man  %matplotlib  %mkdir  %more  %mv  %notebook  %page  %pastebin  %pdb  %pdef 
 %pdoc  %pfile  %pinfo  %pinfo2  %popd  %pprint  %precision  %profile  %prun  %psearch  
%psource  %pushd  %pwd  %pycat  %pylab  %qtconsole  %quickref  %recall  %rehashx  
%reload_ext  %rep  %rerun  %reset  %reset_selective  %rm  %rmdir  %run  %save  %sc  
%set_env  %store  %sx  %system  %tb  %time  %timeit  %unalias  %unload_ext  %who  %who_ls 
 %whos  %xdel  %xmode

Available cell magics:
%%!  %%HTML  %%SVG  %%bash  %%capture  %%debug  %%file  %%html  %%javascript  %%js  %%latex
  %%markdown  %%perl  %%prun  %%pypy  %%python  %%python2  %%python3  %%ruby  %%script  
%%sh  %%svg  %%sx  %%system  %%time  %%timeit  %%writefile

Automagic is ON, % prefix IS NOT needed for line magics.

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%ls?

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Repr: <alias ls for 'ls -F --color'>

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%lsmagic?

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Docstring: List currently available magic functions.
File:      /usr/local/lib/python3.5/dist-packages/IPython/core/magics/basic.py

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%matplotlib inline
import numpy as np
import matplotlib.pyplot as plt
plt.plot(np.arange(10))

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[<matplotlib.lines.Line2D at 0x7f2204c19be0>]

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import numpy as np
%timeit np.sin(24)

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2.42 µs ± 592 ns per loop (mean ± std. dev. of 7 runs, 100000 loops each)

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%%timeit
x=np.sin(20)
np.cos(-x)

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5.08 µs ± 463 ns per loop (mean ± std. dev. of 7 runs, 100000 loops each)

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%%writefile test_peace.py
import numpy as np
print(np.random.randint(1,5))

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Writing test_peace.py

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%run test_peace.py

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%pwd

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'/home/hanxiaoyang/ml_jxy5/0.Teacher/Exercise'

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%cd ../

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/home/hanxiaoyang/ml_jxy5/0.Teacher

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%cp test_peace.py test_load.py

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%whos

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Variable   Type       Data/Info
-------------------------------
np         module     <module 'numpy' from '/us<...>kages/numpy/__init__.py'>
plt        module     <module 'matplotlib.pyplo<...>es/matplotlib/pyplot.py'>
x          float64    -0.3048106211022167
y          list       n=3

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%reset

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%whos
Interactive namespace is empty.

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%load test_peace.py

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# %load test_peace.py
import numpy as np
print(np.random.randint(1,5))